News tagged with hole
Mysterious X-rays from a Nearby Galaxy
Nov 13, 2009 |
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(PhysOrg.com) -- The nucleus of an active galaxy, an AGN, contains a massive black hole that is vigorously accreting material. In the process it typically ejects jets of particles and radiates brightly at ...
NASA's Great Observatories Celebrate International Year of Astronomy
Nov 10, 2009 |
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(PhysOrg.com) -- A never-before-seen view of the turbulent heart of our Milky Way galaxy is being unveiled by NASA on Nov. 10. This event will commemorate the 400 years since Galileo first turned his telescope ...
Sky merger yields sparkling dividends
Oct 13, 2009 |
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(PhysOrg.com) -- Not surprisingly, interacting galaxies have a dramatic effect on each other. Studies have revealed that as galaxies approach one another massive amounts of gas are pulled from each galaxy ...
Securing the web: New tool would automatically plug holes that hackers exploit
Technology / Computer Sciences
Oct 08, 2009 |
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(PhysOrg.com) -- More and more, malicious hackers are exploiting web site security holes to attack their victims' computers. Programmers try to identify those holes in advance and plug them with code that ...
Black Holes Go 'Mano a Mano'
Oct 06, 2009 |
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(PhysOrg.com) -- Two black holes in galaxy NGC 6240 are only 3,000 light years apart -- and getting closer.
Cosmic entropy could be 100 times greater than previously thought
Oct 06, 2009 |
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(PhysOrg.com) -- A new analysis of supermassive black holes has discovered the entropy of the universe is much greater than previously thought, which means it may also be very slightly closer to ultimate heat death.
NIU will use robotic submarine to explore melting occurring below Antarctic ice
Space & Earth / Earth Sciences
Oct 05, 2009 |
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(PhysOrg.com) -- Northern Illinois University geologists are helping to lead a multi-million-dollar, five-year investigation of melting near the base of the West Antarctic Ice Sheet (WAIS) using a 24-foot-long ...
NASA Satellite Data Show Progress of 2009 Antarctic Ozone Hole (w/ Video)
Space & Earth / Earth Sciences
Sep 16, 2009 |
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(PhysOrg.com) -- The annual ozone hole has started developing over the South Pole, and it appears that it will be comparable to ozone depletions over the past decade. This composite image from September 10 ...
Ozone hole smaller in 2009 than 2008: WMO
Space & Earth / Earth Sciences
Sep 16, 2009 |
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The World Meteorological Organisation said Wednesday that the ozone hole is expected to be smaller in 2009 than a year ago.
Sophisticated telescope camera debuts with peek at nest of black holes
Sep 15, 2009 |
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Less than two months after they inaugurated the world's largest telescope, University of Florida astronomers have used one of the world's most advanced telescopic instruments to gather images of the heavens.
Mass. center to build ocean monitoring stations
Space & Earth / Earth Sciences
Sep 07, 2009 |
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(AP) -- A Massachusetts ocean studies institute is building underwater data collection stations to help researchers understand the ocean's role in climate change.
Ozone: Climate change boosts ultraviolet risk for high latitudes
Space & Earth / Earth Sciences
Sep 06, 2009 |
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(PhysOrg.com) -- Physicists at the University of Toronto have discovered that changes in the Earth's ozone layer due to climate change will reduce the amount of ultraviolet (UV) radiation in northern high ...
What's Holding Antarctic Sea Ice Back From Melting?
Space & Earth / Earth Sciences
Sep 02, 2009 |
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(PhysOrg.com) -- Global temperatures are increasing. Sea levels are rising. Ice sheets in many areas of the world are retreating. Yet there’s something peculiar going on in the oceans around Antarctica: even ...
NGC 4945: The Milky Way's not-so-distant Cousin
Sep 02, 2009 |
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(PhysOrg.com) -- ESO has released a striking new image of a nearby galaxy that many astronomers think closely resembles our own Milky Way. Though the galaxy is seen edge-on, observations of NGC 4945 suggest ...
Giant Galaxy Hosts the Most Distant Supermassive Black Hole
Sep 02, 2009 |
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(PhysOrg.com) -- University of Hawaii (UH) astronomer Dr. Tomotsugu Goto and colleagues have discovered a giant galaxy surrounding the most distant supermassive black hole ever found. The galaxy, so distant ...
